Universal cutter-head



S t nu e h S 2 Onu No. 439,673. Patented Nov. 4, 1890.

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M. MORTON. IYINIVERSALl GUTTER HEAD.

No. 439,673. Patented Nov. 4, '1890.v

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UNITED STATES PATENT OFFICE.'

MATTHEW MORTON, OF ROMEO, MICHIGAN.

UNIVERSAL CUTTER-HEAD.

SPECIFICATION forming part of Letters Patent NO. 439,67 3, dated November 4, 1890. Application filed October 22, 1889. Renewed October 6, 1890. Serial No. 367,279. (No model.)

To all whom, it may concern.

Beit known that I, MATTI-IEW MORTON, a citizen of the United States, residing at Romeo, county of Macomb, State of Michigan, have inventeda certain new and useful Improvement in Universal Cutter-Heads; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My present invention relates to a new and universal cutter-head for various uses, and has more especial reference to employment upon the cutter-bar of a combined portable planer and key-seat-cutting machine embodied in a separate application, Serial No. 327,778, iiled of even date herewith.

To this end my invention consists of the combinations of devices and appliances hereinafter described and claimed, and more fully shown in the accompanying drawings, in which- Figure l is a view in perspective of the uni- Fig. 7 is ahorizontal cross-section of the same on the line Fig. 6.

The object of my invention is to construct a universal cutter-head, and one whereby a machine to which it is applied may be used for planing straight or beveled surfaces in various directions, for a slotting-machine, or for other analogous purposes.

To this end a tool-holder A is suitably pivoted in a head A', as shown at a. Said head is provided with a screw-threaded stem or collar A4, whereby it may, if desired, be engaged directly upon the screw-threaded end B of the cutter-bar B. As so connected upon the cutter-bar, it is evident that the cutterhead may be turned to carry the cutter in any desired direction. To adapt the cutterhead for other Work, as for planing beveled surfaces, I mount the head A upon a movable base C, having an adjustable connection, as by a dovetailed union c with an arm C', a feed-screw c being 'provided to adjust the one relatively to the other. The arm O may be provided with a divided collar C3 to engage the cutter-bar, and with a set-screw C4 to unite the one upon the other in any desired adjustment.

A har c2 may be provided to limit the movement of the tool-holder in the head.

The tool-holder A is constructed with an oriice a to receive the cutter C2, which may be held in place by aset-screw a2. The holder is preferably pivoted to the head at one Side the center of gravity, so that when the cutterbar descends the tool will fall back away from the work. The orifice o. is cut away, preferably as shown at a3, the binding-screw a2 forcing the cutter against the point a4 to secure it in position. The base C maybe provided, also, with a divided collar A2, its open ends united by a set-screw A3 to unite the head firmly upon the cutter-base. There the head A simply is to be united to the cut` ter-bar, as it may be for certain kinds of work, a divided collar may unite the head to the said bar instead of to a base C.

I have hitherto described my invention as adapted l:tor a planer. It will be seen, however, by reference to Fig. 6 that the cutterhead may also be adapted for use on a slottin g-machine by reversing the cutter, in which case the cut-away portion of the orifice a is also reversed, and the position of the setscrew may be altered, as shown in said figure. In this case, moreover, to provide for the tool falling away from the work when being retracted, I pivot the tool-holder as at a5, or upon the opposite side from what it is shown as adapted for a planer. In this case the head A may be directly engaged upon the cutter-bar.

Fig. 6 also shows a modification of the manner of engaging the tool-holder upon the cutter-bar. To this end the extremity of the cutter-bar is screw-threaded and a collar A4, attached to head A', is screw-tapped to engage therewith. The end of the cutter-bar is also recessed or cut down, as shown at b.

D is a tapering screw having an engage- IOO ment in a corresponding screw-tapped socket b for spreading the bifureated end of the cutter-head and binding it against the collar A4 to hold the latter firmly in place upon the cutter-bar.

"What I claim as my invention is- 1. In combination, the head A a toolh older having a jointed engagement therewith, and a stop to limit the movement of said toolholder, substantially as described.

2. In combination, a rotatable head A and atool-holder jointedly engaged therewith, substantially as described.

3. In combination, a head A', a tool-holder jointedly engaged therewith, a movable base supporting said. head, an arm C', adjustably engaged with said base, and a feed-screw to adjust the said base upon said arm, substantially as described.

MATTHEW NORTON. Witnesses:

S. A. READE, R. S. READE. 

